An umbrella includes an anti-inversion mechanism that is configured to apply to each rib assembly a force that counters an inversion force that is applied to the umbrella. The anti-inversion mechanism includes a flexible elongated structure that is disposed exteriorly along the second rib part and has a first bent end that is attached to the second rib part by passing through an opening formed in the second rib part and being anchored within a hollow interior of the second rib part. The mechanism further includes a flexible wire having a first end attached to the flexible elongated structure of the anti-inversion mechanism and a second end attached to a rib tip that is located at a free distal end of the rib assembly.

An unmanned aerial vehicle (UAV) configured to be carried on a vehicle and a method and a system for holding umbrella using the UAV are disclosed. The UAV and the vehicle are communicated with each other wirelessly. The UAV can be used for providing the service of holding umbrella for the occupant getting on/off the vehicle. The occupant does not have to manually hold the umbrella, so as to effectively solve the problem of getting wet when getting on/off the vehicle due to holding umbrella manually.

An umbrella canopy that opens and closes not from a stick from within the interior of the umbrella canopy but from the exterior crown where a line is pulled to open the umbrella canopy and where a button is pushed to close the umbrella canopy. The interior of the umbrella canopy includes no stick to hold up the umbrella canopy. Taut edges of the umbrella canopy hold up the umbrella canopy, for instance, on the top edges of a playyard.

An umbrella canopy that opens and closes not from a stick from within the interior of the umbrella canopy but from the exterior crown where a line is pulled to open the umbrella canopy and where a button is pushed to close the umbrella canopy. The interior of the umbrella canopy includes no stick to hold up the umbrella canopy. Taut edges of the umbrella canopy hold up the umbrella canopy, for instance, on the top edges of a playyard.

An umbrella includes an anti-inversion mechanism that is configured to apply to each rib assembly a force that counters an inversion force that is applied to the umbrella. The anti-inversion mechanism includes a first rib joint that is coupled to first and second ribs, a first elongated member that is coupled to the first rib joint and a second elongated member that is coupled to the first elongated member and to the distal rib. The first rib joint includes an inner slot and the first elongated member comprises a wire having a bent clip portion at a first end of the wire, the bent clip portion being received within the inner slot and being biased against a floor of the inner slot resulting in the wire being attached to the first rib joint.

An umbrella includes an anti-inversion mechanism that is configured to apply to each rib assembly a force that counters an inversion force that is applied to the umbrella. The anti-inversion mechanism includes a first rib joint that is coupled to first and second ribs, a first elongated member that is coupled to the first rib joint and a second elongated member that is coupled to the first elongated member and to the distal rib. The first rib joint includes an inner slot and the first elongated member comprises a wire having a bent clip portion at a first end of the wire, the bent clip portion being received within the inner slot and being biased against a floor of the inner slot resulting in the wire being attached to the first rib joint.

An outdoor umbrella includes an umbrella post, an umbrella cover assembly and a folding-unfolding device. The umbrella cover assembly includes an umbrella rib assembly and an umbrella fabric covering the umbrella rib assembly. The folding-unfolding device includes a slide sleeve, a folding-unfolding handle assembly and a pull rod. A first oblique rod and a second oblique rod hinged and matched with each other are disposed on the umbrella rib assembly. One end of the first oblique rod is hinged to the slide sleeve. One end of the second oblique rod is hinged and matched with the umbrella post. A middle portion of the folding-unfolding handle assembly is hinged and matched with the umbrella post, and the folding-unfolding handle assembly is able to vertically stretch the pull rod in cooperation with a lever and drives the slide sleeve to slide vertically to fold or unfold the umbrella cover assembly.

An outdoor umbrella includes an umbrella post, an umbrella cover assembly and a folding-unfolding device. The umbrella cover assembly includes an umbrella rib assembly and an umbrella fabric covering the umbrella rib assembly. The folding-unfolding device includes a slide sleeve, a folding-unfolding handle assembly and a pull rod. A first oblique rod and a second oblique rod hinged and matched with each other are disposed on the umbrella rib assembly. One end of the first oblique rod is hinged to the slide sleeve. One end of the second oblique rod is hinged and matched with the umbrella post. A middle portion of the folding-unfolding handle assembly is hinged and matched with the umbrella post, and the folding-unfolding handle assembly is able to vertically stretch the pull rod in cooperation with a lever and drives the slide sleeve to slide vertically to fold or unfold the umbrella cover assembly.

An umbrella with a frame structure supported by a support structure. The frame structure has a support hub, a plurality of long ribs each comprising a first rib section and a second rib section releasably connected by a pivot rib coupler, wherein each long rib has an end releasably or fixedly coupled to an upper end of the support hub. The frame structure further having a plurality of short rib sections in the form of a plurality of third rib sections, each comprising a first end releasable coupled to the pivot rib coupler and a second end releasably or fixedly coupled to a lower end of the support hub, wherein each pivot rib coupler is configured to pivot the third rib section relative to the first and second rib sections that are releasably coupled to the pivot rib coupler.

An umbrella with a frame structure supported by a support structure. The frame structure has a support hub, a plurality of long ribs each comprising a first rib section and a second rib section releasably connected by a pivot rib coupler, wherein each long rib has an end releasably or fixedly coupled to an upper end of the support hub. The frame structure further having a plurality of short rib sections in the form of a plurality of third rib sections, each comprising a first end releasable coupled to the pivot rib coupler and a second end releasably or fixedly coupled to a lower end of the support hub, wherein each pivot rib coupler is configured to pivot the third rib section relative to the first and second rib sections that are releasably coupled to the pivot rib coupler.